Motorcycle helmet



The claimed ornamental design for a helmet which embodies the design isfor use as a motorcycle helmet.

FIG. 1 is a left side view of a motorcycle helmet showing our newdesign, the right side being a mirror image;

FIG. 2 is a rear and right side perspective view thereof;

FIG. 3 is a front and left side perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a rear perspective view thereof; and,

FIG. 8 is a bottom view thereof.

We claim the ornamental design for the motorcycle helmet, as shown and described. 